Key Features
- Soft starter: SIRIUS soft starter S0 with product designation Soft starter.
- Motor protection functions: Motor overload protection, intrinsic device protection, and external reset.
- Current and power data: 32 A at 40 °C and 15 kW/400 V at 40 °C.
- Electrical connection: Screw terminals for the main current circuit and the auxiliary and control circuit.
- Control supply: 24 V AC/DC control supply with 50 Hz and 60 Hz operation.
- Construction details: Integrated bypass contact system, thyristors, and screw and snap-on mounting.
Applications
- Soft starting of motors: Used for controlled motor starting with adjustable current limitation.
- Motor overload protection: Provides motor overload protection in the control circuit.
- External reset handling: Supports external reset for the connected starter function.
Technical Summary
| Product designation | Soft starter |
|---|---|
| Product brand name | SIRIUS |
| Size of engine control device | S0 |
| Operational current at 40 °C rated value | 32 A |
| At 400 V – at standard circuit at 40 °C rated value | 15 kW |
| Operating voltage at standard circuit rated value | 200 … 480 V |
| Type of voltage of the control supply voltage | AC/DC |
| Control supply voltage 1 at AC at 50 Hz rated value | 24 V |
| Control supply voltage 1 at DC rated value | 24 V |
| Fastening method | screw and snap-on mounting |
| Type of electrical connection for main current circuit | screw-type terminals |
| Type of electrical connection for auxiliary and control circuit | screw-type terminals |
Frequently Asked Questions
What is Siemens 3RW4027-1BB04?
It is a SIRIUS soft starter S0.
What are the current and power ratings of 3RW4027-1BB04?
The rated current is 32 A at 40 °C, and the power is 15 kW/400 V at 40 °C.
What control supply does 3RW4027-1BB04 use?
The control supply voltage is 24 V AC/DC, with 50 Hz and 60 Hz operation.
How is Siemens 3RW4027-1BB04 connected and mounted?
It uses screw-type terminals for the main current circuit and for the auxiliary and control circuit, with screw and snap-on mounting.
